Improvement in pumps



UNITED vSTATES PATENT OFFICE.

J. M. ROEBUOK AND W. R. REECE, OF DONALDSON, PENNSYLVANIA.

IMPROVEMENT IN PUMPS.

Specification forming part of Letters Patent No. 56,101 dated July 3, 1866.

To all whom it may concern.-

Beit known that we, JAMES M. ROEBUGK and WILLIAM R. Banca, of Donaldson, in the county of Schuylkill and State of Pennsylvania, have invented certain new a-nd useful Improvements in Pumps; and we do hereby declare the following to be a sufciently full, clear, and exact description thereof to enable others skilled in the art to construct the same, reference being had to the annexed drawings, making part of this specification, in which- Figures l and 2 are horizontal sections on the lines I I and II II of Fig. 3. Fig. 3 is `a vertical transverse section on the line III III of Figs. l, 2, and 4. Fig. 4 is a vertical lon gitudinal section on the line IV IV, Fig. 3.

In all the figures Vlike parts are indicated by the saine letter of reference.

A A, Figs. I, 2, and 3, is the cylinder, hav,- ing a plunger packed in the ordinary manner. The cylinder is made or cast in one piece with the valve-seat chamber. This has an inductionopening, a, at its bottom, and an opening for discharge, b, on the top. The valve-chainber is connected with the interior of the cylinder by the openings Vo c' at the ends thereof.

In thevalve-chamber B, and fitting it tightly, but being easily removed for repairs or other purposes, is a case, O O, open at each end, and divided into fourcompartments by the horizontal central partition, C', extending lengtl1 Wise, and the vertical central partition, C.

' In the bottom plate of the case are openings,

closed by the valves D and E, which communicate with the induction a. In the middle plate, O', are similar openings, also closed by valves D E', connecting the two lower compartments of the case with the upper compartments, which in their turn have a common opening to the discharge or eduction b. In the side of the case C which is next the cylinder are openings to the passages c c into the ends of the cylinder A.

The heads of the cylinder extend over and lcover the ends of the chamber B and case C within it, and are secured by bolts and nuts in the ordinary manner.

When the plunger is moved-say toward the stufng-boX--a vacuum is formed behind it, and the Water rushes in through the induction and through the valve E, which is lifted, and

then into the opening c, so as to ll the cylin der behind the plunger. When the plunger makes a return stroke the valve E closes and the valve E' rises to make Way for the water in the lower compartment of the case C and in the cylinder, so that it may Iiow up through the valve E and out of the eduetion b. At the saine time water is filling the cylinder between the plunger and the stuiing-box through the valve D and the opening c.

When the rst return stroke is made with the pump the water that rises through the valve E' will fill that compartment which is over the valve D before it passes Iout of the opening b; but when the plunger moves again toward the stuffing-box, as much water as lies in the cylinder will be forced through the opening b, and this will take place at every stroke of the piston or plunger.

The valves D D and E E are packedupon their seats, so as to be water-tight, and vibrate upon hinges, as seen at A A in all the figures.

During the working of the pump the valves D and E will be open during one stroke of the plunger, and will close and be kept down by the presence of water above them, when the plunger moves in the contrary direction, which time the valves D E will be open, as shown in Fig. 3.

Having thus fully described our invention, what we claim as new therein, and desire to secure by Letters Patent, is-

In a pump, the removable case O, divided by partitions, substantially as described, and furnished with valves and openings, as set forth, for the purpose of being readily repaired or renewed without disturbing the rest of the machinery, as set forth.

JAMES M. ROEBUGK. WILLIAM R. REEGE. Witnesses:

DAvID LoMIsoN, FRANK I. FoRBIIs. 

